when I had a pick up I made a pvc pipe frame to tie my planes into
When gas got stupid I got a small Hyundai, now I lay down 1/2 the back seat, there is a ring built in that I pass velcro through and tie the gear in with that
The wings, I cut 2 pieces of wood (2x2) one goes in the back of the car at the lip of the rear side windows, the other i place behind my seat at the fwd lip of the back seat windows. I lay my wings on that.